SB2026020901 - Red Hat Enterprise Linux 9 update for kernel
Published: February 9, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 16 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2025-37789)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the validate_set() function in net/openvswitch/flow_netlink.c. A local user can perform a denial of service (DoS) attack.
2) Double free (CVE-ID: CVE-2025-37819)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within the gicv2m_of_init() function in drivers/irqchip/irq-gic-v2m.c. A local user can perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2025-38022)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ib_device_notify_register() and ib_register_device() functions in drivers/infiniband/core/device.c. A local user can escalate privileges on the system.
4) Use-after-free (CVE-ID: CVE-2025-38024)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the rxe_cq_from_init() function in drivers/infiniband/sw/rxe/rxe_cq.c. A local user can escalate privileges on the system.
5) Out-of-bounds read (CVE-ID: CVE-2025-38415)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the squashfs_fill_super() function in fs/squashfs/super.c. A local user can perform a denial of service (DoS) attack.
6) Use of uninitialized resource (CVE-ID: CVE-2025-38403)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the vmci_transport_packet_init() function in net/vmw_vsock/vmci_transport.c. A local user can perform a denial of service (DoS) attack.
7) Improper locking (CVE-ID: CVE-2025-38459)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the clip_mkip() function in net/atm/clip.c. A local user can perform a denial of service (DoS) attack.
8) Improper locking (CVE-ID: CVE-2025-38730)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the io_bundle_nbufs(), io_sendmsg(), io_net_kbuf_recyle(), io_send_zc() and io_sendmsg_zc() functions in io_uring/net.c. A local user can perform a denial of service (DoS) attack.
9) Out-of-bounds read (CVE-ID: CVE-2025-39760)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the usb_parse_ss_endpoint_companion() function in drivers/usb/core/config.c. A local user can perform a denial of service (DoS) attack.
10) Input validation error (CVE-ID: CVE-2025-40170)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the sk_clone_lock(), sk_dst_gso_max_size() and sk_setup_caps() functions in net/core/sock.c. A local user can perform a denial of service (DoS) attack.
11) Use-after-free (CVE-ID: CVE-2025-40135)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ip6_autoflowlabel() and ip6_xmit() functions in net/ipv6/ip6_output.c. A local user can escalate privileges on the system.
12) Use-after-free (CVE-ID: CVE-2025-40141)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the iso_sock_kill() function in net/bluetooth/iso.c. A local user can escalate privileges on the system.
13) Use-after-free (CVE-ID: CVE-2025-40158)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ip6_finish_output2() and ip6_finish_output() functions in net/ipv6/ip6_output.c. A local user can escalate privileges on the system.
14) Use-after-free (CVE-ID: CVE-2025-40271)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the pde_put(), remove_proc_entry() and remove_proc_subtree() functions in fs/proc/generic.c. A local user can escalate privileges on the system.
15) Input validation error (CVE-ID: CVE-2025-40269)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the snd_usb_endpoint_set_params() function in sound/usb/endpoint.c. A local user can perform a denial of service (DoS) attack.
16) Use-after-free (CVE-ID: CVE-2025-40318)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the hci_cmd_sync_dequeue_once() function in net/bluetooth/hci_sync.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.